Hi Terry, Thanks for the response.
I have sort of tried with -36. The rsync always hung when it was working on a large file; an outlook.pst file for example. I have not run the backup script since it did work using the 5.8.0-33 kernel. However, I have since updated the kernel to 5.8.0-36. I use dd as a crude measure of performance with large sequential files as follows... $ dd if=Win10_20H2_v2_English_x64.iso of=/dev/null bs=8192k The source file is a Windows 10 install .iso as the name would suggest, and is about 6GB. The reported speed when the copy works is about 475 MB/s. If run again it gets 2GB/s from cache. The dd command (and cp -p) hang is the same way (-36 kernel) as the rsync did with -34 but the failures were intermittent. I opened another bug report for the dd/cp hang with -36 kernel as well but I suspect they're really the same problem. I'll try the dd command with the .so file sourced from the boot ssd and from the backup hard drive tomorrow. I reinstalled today from the 20.10 desktop image. The last failure seemed to result in boot drive corruption. Yesterday while I was working on this response the machine hung again but this time only Firefox and Thunderbird. New terminal windows opened but were unresponsive. The mouse was responsive but not the keyboard. It's starting to look more like a hardware problem but I haven't been able to indentify the failing component yet. I'm going to reinstall on a newer machine today; AMD Ryzen 3700X with M.2 ssd boot drive and 64GB memory. It has a dated Radeon 260X GPU though and I'm not sure how good the support is for it. I'll get back to you later today when that's done. Jack On 2021-01-12 4:21 p.m., Terry Rudd wrote: > Have you tested with 5.8.0-36? > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1910588 Title: rsync backup hang To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1910588/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
